Find the length of the unknown side in the right triangle. Leave your answer in simplest radical form.

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Find the length of the unknown side in the right triangle. Leave your answer in simplest radical form.

Find the length of the unknown side in the right triangle. Leave your answer in simplest radical form.

A. square root of 15 space end root i n.

B. 15 space i n.

C. square root of 113 i n.

D. square root of 225 i n.